Wetland Information To Environmental

Information Needed for the Milestone Activity: Section 404 and Wetland Information

Project Number: ______

PCN: ______

Submittal Information:

A pdf package of the wetland information is preferred. Please email a link to the ftp site or the design file where permit information is stored.

The information below is needed fromthe plans(if available) for Wetland Information to Environmental which may need a Section 404 Permit Application. For Consultants, complete Part A and Part B (if needed) and submit information or questions to NDDOT Technical Support. For NDDOT Designers, complete Part A and submit information to Steve Kessler, ETS Division, Section 2, . Only include information pertaining to wetlands, other waters, and mitigation.

Part A – For NDDOT Designers and Consultants

  • NOTE: Before providing the information, check the USACE Jurisdictional Determination letter received in response to the Jurisdictional Request to see if there are any jurisdictional wetlands. If there are no Jurisdictional wetlands, the letter will indicate a Section 404 Permit is not needed. The information below needs to be provided to the Environmental Section even if the wetlands are deemed non-jurisdictional for documentation of impacts to non-jurisdictional wetlands.

Y / N Will the work temporally or permanently impact existing wetlands? If Yes, please give a brief description of what caused the impacts (for example: widening, culvert extension, temporary bypass, etc.) and proceed through the check list and include the applicable information. If No, please give a brief explanation andproceed to the signature line.

______

Y / N Has Avoidance and Minimization of wetland impacts been incorporated into the design?

Y / N Is there any construction easements or new right of way for this project?

Y / N If yes, are these areas within the wetland delineation area?

  • If no, a field or office delineation will be needed to extend the wetlands.

Y / N Are the wetlands in the construction easement outside the ROW in a USFWS Easement?

  • If yes, see Appendix DUSFWS General Special Use Permit / Easement Exchange Checklist.

Y / N Are all impacts covered under the NEPA document?

Y / N Is the work on a Reservation?

Include the items below in the information submittal package:

__ Wetland Information to Environmental Check List (Completed)

__ Title Sheet

__ Scope of Work

__ Existing Typical Section(s) that includes areas with wetlands

__ Proposed Typical Section(s) that includes areas with wetlands

__ Allowable Pipe List (if available)

__ Section 75 Sheets (only sheets pertaining to wetland impacts and onsite mitigation information)

  • See CADD Manual for information needed on the Section 75 Sheet.
  • Include temporary work such as bypasses or cofferdams
  • If a temporary bypass is needed culvert(s) will be require to be maintained flow. If a culvert is to be in place on a temporary bypass for an extended period of time (3 months) please use the sizing criteria below. If a velocity of 3 ft/sec or less can’t be met please contact NDDOT hydraulics section.
  • Set at least 1 culvert 4” below existing stream bed elevation.
  • Size culvert for a 2 year peak discharge (Q2) event, and adjust size as needed to provide a velocity of 3 ft/sec. or less at the Q2H discharge. Q2H will be calculated as (0.2 to 0.4)* Q2. Typically, it is recommended that Q2H be calculated as 0.3* Q2.
  • Riprap should be placed on the temporary bypass embankment upstream and downstream below the water line. Other erosion and sediment controls should be used on the temporary bypass above the water line upstream and downstream.
  • Sheets should be in color for the application.
  • Onsite Wetland Mitigation:
  • Show andlabel bottom contourelevation of intended mitigation area.
  • Include a typical section on the Section 75 sheet depicting slopes and mitigation limits.
  • Onsite mitigation should be based on survey and field delineations data. If a field delineation and/or survey is not completed for you project contact Technical Support.
  • Include in the cross sections. See Cross Section below.
  • Verify there are no utilities within the mitigation area.

__ Cross Sections(only sheets pertaining to wetlands and mitigation)

  • Include the delineated wetland on the proposed cross sections.
  • Include the onsite mitigation area (if applicable). Enough cross sections should be cut to clearly show beginning and end of the area along with the elevation. For example cross sections should be cut at the beginning, center, and end of each mitigation site.
  • Include existing water line for deep water areas. (water greater than 6.6 feet deep)

__ Sheets that show wetland impact details (i.e. culvert extension detail, riprap detail, temporary bypass, and slope flattening detail).

__If cultural avoidance areas are required in the plans they need to be listed and stated in the Environmental Notes and clearly shown and labeled “Avoidance Area” in Section 60, 75, 76, 77 and 80 plan sheets. See Jeani Borchert for wording of the environmental note, and locations of fencing or other methods needed in the plans. Include the following from the final plan set as a separate pdf package titled Cultural Avoidance (only include sheets pertaining to cultural avoidance) and submit to Jeani:

  • Section 6 - Environmental Notes
  • Section 60 - Plan & Profile
  • Section 75 – Wetlands, Mitigation and Environmental
  • Section 76 – Temporary Sediment and Erosion Control
  • Section 77 – Permanent Sediment and Erosions Control
  • Section 80 - Fencing Layouts

__ Are wetlands jurisdictional based on the wetland jurisdictional determination letter received by the USACE? If yes, the following information also needs to be provided.

Y/N Is the work on USACE property?

Y/N Is the work on a Reservation?

__ NEPA Documentation signature page

Part B – For Consultants (if a USACE Section 404 Permit is required)

__ Signed CatEx (if applicable)

__ SHPO Concurrence

__ ESA Compliance (ESA Table and any additional correspondence)

__ USACE Permit Application: NDDOT/USACE Short Form for most projects and the USACE 4345 Form for higher level projects. Submit the NDDOT/USACE short form as a word document. See Appendix C for permit and 12 component examples/templates and Appendix F for the application short form.Submit the USACE short form also as a word documents to allow for USACE data entry.

__ 12 Components of Mitigation (If onsite mitigation is required for the USACE).

__ Onsite mitigation area shown on an aerial photo. This should include north arrow, mitigation polygon, mitigation acreage, delineated wetlands, section, township, range, county, reference point, latitude, and longitude.

__ Onsite mitigation shape files should be submitted along with the permit information. The shape files should be polygons and have Project number, PCN, and acreage attributes filled out (if applicable).See link for example attributes and ArcPad files

__ Preconstruction photos of the onsite mitigation area. See last page of the checklist for template.

Below is guidance to aid in plan development for most cases but depending on the significance and size of impact other measures may be needed on a case by case basis.

Permanent Wetland Impact Description: Permanent wetland impacts change any of the existing wetland area into an upland area. For example, placing fill beyond the existing toe of slope. A change in wetland class can also be considered a permanent wetland impact.

Temporary Wetland Impact Description: Temporary impacts result from temporary fills placed in the wetland during construction. All fills must be removed to original contour elevation. Examples: Temporary stockpiles,cofferdams, bypasses..etc All temporary fills need to be removed to preconstruction contours to be considered temporary. Temporary impacts also depend on time. Any impacts lasting longer than 180 days may not be considered temporary and may require mitigation for the temporary loss of function.

Onsite Mitigation:Verify there is sufficient hydrology and soils to ensure that the creation is viable. A minimum of 10 acres of drainage area to support 1 acre of wetland can be used to determine hydrology.

The final elevation of the mitigation area should match the lowest elevation of the existing wetland or be set to 1’ below invert elevation of the control structure in the wetland to pond water long enough to establish a wetland (consult with ETS for elevation).Wetland mitigation areas should be seeded with a wetland seed mix. The mitigation area acreage should only include the excavated bottom contour and should not include wetlands assumed to establish on the inslope transition.

Mitigation created at the same wetland impacted receives a 1:1 ratio. Mitigation not created at the same wetland impacted receives 2:1. If restoring a wetland the ratio is 1:1. See Appendix B7 for additional mitigation information.

Permanent impacts to jurisdictional Other Waters (OW),excluding deep water, may require mitigation. Impacts greater than 300 linear feet, measured parallel with the stream for streams and rivers or perpendicular to the roadway for a basin, may require mitigation. Contact ETS for further guidance.

Designer: ______Date: ______

Consulting Firm: ______

Mitigation Site Photography

A representative number of photographs shall be taken depicting the onsite wetland mitigation site. Use following photo template to document preconstruction photo information.

Photo #:
By:
Adjacent wetland number(if applicable):
Latitude:
Longitude:
Direction photo was taken:
Date/Time Taken:
Photo #:
By:
Adjacent wetland number(if applicable):
Latitude:
Longitude:
Direction photo was taken:
Date/Time Taken:

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